#include<bits/stdc++.h>
using namespace std;
const int N=1e5+10;
long long n,a[N],ans;
int main(){
	freopen("duel.in","r",stdin);
	freopen("duel.out","w",stdout);
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	for(long long i=1;i<=n;i++){
		cin>>a[i];
	}
	sort(a+1,a+n+1);
	unsigned long long t,left=0;
	for(long long i=1;i<=n;i++){
		if(a[i]!=a[i-1]){
			int l=i-t;
			if(l>left){
				ans+=left;
				left=l;
			}
			else{
				ans=l;
				left=left;
			}
			t=i;
		}	
	}

	cout<<ans<<"\n";
	return 0;
}